page-scan {
    html,body,ion-app,ion-content,ion-page,nav-decor{
        background-color: transparent !important;
    }
    .line{
        position: absolute;
        z-index: 999;
        top:15px;
        height: 2px;
        width: 100%;
        background-color: #009900;

        // 动画
        animation: scan 1s infinite alternate;
        -webkit-animation: scan 1s infinite alternate;
    }
    @keyframes scan {
        from {
            top: 20%;
        }
        to { 
            top: 80%;
        }
    }
}
